CN101585173B - Improved structure of elbow torque wrench - Google Patents

Abstract

An improved elbow torsion wrench structure comprises a handle end and a working head end, wherein the handle end is connected with the working head end; the working head end is provided with a straight rod section and a curved rod section, the straight rod section extends out from the handle end, the straight rod section is provided with an extension angle relative to the curved rod section, and the extension angle is 60-70 degrees; therefore, the bent rod section is used for vertical pulling operation, and the handle end is extended by forming a curvature of 20 to 30 degrees, so that the best operation angle is given to a user. The invention can provide the optimal operation angle for the user.

Description

Improved structure of elbow torque wrench

technical field

The invention relates to a hand tool, in particular to an improved curved pipe torque wrench structure with a fixed ratio of curvature and length. the

Background technique

Please refer to China Taiwan Patent Application No. 84207250 "L-rod dual-purpose wrench" patent, which provides a kind of L-rod dual-purpose wrench, which mainly separates a socket for insertion at both ends of an L-shaped handle A drive head and a sleeve connector for socketing screwdriver bits; in this way, sleeves of different specifications can be inserted through the drive head, and screwdriver bits of different shapes can also be socketed through the socket connector. Therefore, it can be used The L-rod wrench achieves the purpose of dual use and saves purchase cost. the

Continue to refer to Figure 1 and Figure 2, which are the existing D-head wrench and telescopic elbow wrench respectively. The handle end and the working head end are obviously at right angles, and sleeves of different sizes can be connected to the working head end. Do the wrenching work. the

Although the above-mentioned three existing wrenches have the characteristic that the handle end and the working head end are tortuous, the bending angle between the handle end and the working head end is only fixed at a right angle. It is easy to be disturbed by the irregular shape of the object. For example, if you want to pull a screw in a vertical slot, the handle end and the working head end of the wrench are easy to be vertical. When the working end is inserted into the slot, the grip The handle end is easily aligned with the surface of the object, thereby affecting the user's grip and pull. the

Contents of the invention

The main technical problem to be solved by the present invention is to overcome the above-mentioned defects in the prior art, and provide an improved elbow torque wrench structure, which can provide the user with the best operating angle. the

The technical solution adopted by the present invention to solve its technical problems is:

An improved elbow torque wrench structure is characterized in that it includes a handle end and a working head end, wherein; the working head end has a straight bar section and a curved bar section, and the straight bar section is held by The handle end is extended, and the straight rod section is provided with an extension angle relative to the curved rod section. Degrees form a curved extension, giving the user the best operating angle.

In the aforementioned improved elbow torque wrench structure, the working head end has an extension length, which is the length obtained from the working head end as a whole in the axial direction of the handle end, and the ratio of the straight rod section to the extension length is 1 2 to 1 to 3. the

The aforementioned improved elbow torque wrench structure, wherein the handle end has a hollow holding section and an outer rod section, and an inner rod section is arranged inside the outer rod section, and one end of the inner rod section extends out of the outer rod section to form the working head turbulence. the

The aforementioned improved elbow torque wrench structure, wherein one end of the curved rod section has a joint, and the curved rod section is sequentially provided with an elastic member, a driving member, a braking member and a steel ball, and the elastic member and the driving member form a contact The top part of the driving piece extends out of the surface of the curved rod section and can drive the displacement of the stopper. The steel ball is moved against the top by the stopper, and is partially exposed on the surface of the joint or submerged in the joint. the

The working head end of the present invention can not only be connected with sleeves of different sizes for pulling operations, but also the curved rod section of the working head end has an extension angle of 60° to 70° relative to the straight rod section, which can indeed achieve vertical pulling according to the curved rod section. When moving, the handle end can extend upwards at 20 to 30 degrees, thereby increasing the distance between the handle end and the object being pulled, reducing the possibility of the user holding the handle end being interfered by the object being pulled while performing the pulling operation. And the handle end is only extended according to 20 to 30 degrees, proportionally speaking, the horizontal extension is higher than the vertical extension, reaching 3 to 1 to 4 to 1, so the pulling force of holding the handle end to make a horizontal pull is also can be effectively reserved. the

In summary, the present invention does achieve the best operating angle and ratio of the elbow wrench without affecting the operator's torque application force, and completely retains the optimal ratio of operation and application force, so the present invention has significant practicability and progress. the

The beneficial effect of the present invention is that it can provide the user with the best operating angle. the

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments. the

Fig. 1 is a schematic diagram of an existing D head wrench. the

Fig. 2 is a schematic diagram of an existing telescopic elbow wrench. the

Fig. 3 is a schematic perspective view of the structure of the improved elbow torque wrench of the present invention. the

Fig. 4 is a schematic perspective view of the structure of the improved elbow torque wrench of the present invention. the

Fig. 5 is a schematic diagram of the operation of the structure of the improved elbow torque wrench of the present invention. the

6 to 7 are schematic diagrams of the operation of the second embodiment of the structure of the improved elbow torque wrench of the present invention. the

Explanation of symbols in the figure:

1 handle end 11 grip break 12 outer rod section

13 inner rod section 2 working head end 21 straight rod section

22 curved rod section 23 extension angle 24 extension length

25 Connector 26 Quick Release Structure 261 Elastic Part

262 Driving piece 263 Pulling piece 264 Steel ball

Detailed ways

The embodiment of the present invention has an elbow wrench with a fixed ratio of curvature and length, which gives the user the best operating angle and avoids interference caused by the user's wrench operation being limited by the shape of the object. Please refer to Figures 3 to 4 As shown, the improved elbow torque wrench structure includes a handle end 1 and a working head end 2. The handle end 1 has a hollow grip section 11 and an outer rod section 12, and is inside the outer rod section 12. An inner rod segment 13 is provided, and one end of the inner rod segment 13 extends out of the outer rod segment 12 to form the working head end 2 . the

The working head end 2 has a straight rod section 21 and a curved rod section 22 , the straight rod section 21 extends from the handle end 1 , and the straight rod section 21 has an extension angle 23 relative to the curved rod section 22 . The extension angle 23 is preferably 60 to 70 degrees, and the extension angle 23 can be used to extend the handle end 1 according to 20 to 30 degrees in the horizontal plane when the crank section 22 is pulled vertically, thereby releasing The distance between the handle end 1 and the horizontal plane makes the operation of the wrench uninterrupted; the working head end 2 has an extension length 24, which is obtained from the working head end 2 as a whole in the axial direction of the handle end 1 Length, the length of the straight bar section 21 and the extension length 24 present a ratio of 1 to 1 to 3, because the straight bar section 21 and the curved bar section 22 have an angle difference of 60 degrees to 70 degrees and are made according to the straight bar section 21 The vertical base point, the curved rod section 22 is bound to form a curved extension according to 20 degrees to 30 degrees. In order to avoid the curved rod section 22 considered under the extension angle 23 from being too long or too short, the ratio of the straight rod section 21 to the extension length 24 is Within 1:2 to 1:3, the ratio of straight rod section 21 and curved rod section 22 can be effectively restricted within 1:2 to 1:7, so as to consider the best extension angle 23 of working head end 2 Proportionally, one end of the curved rod section 22 is provided with a joint 25, and the joint 25 is used to connect sleeves of different sizes. the

Please refer to Fig. 5, the working head end of the present invention can not only be connected with sleeves of different sizes for turning operations, but also the curved rod section 22 of the working head end 2 has an extension angle of 60 to 70 degrees relative to the straight rod section 21 , it can be achieved that when the curved rod section 22 is used to pull vertically, the handle end 1 can be extended at a curvature of 20 to 30 degrees, thereby increasing the distance between the handle end 1 and the pulled object and reducing the user's grip. The possibility of the handle end 1 being interfered by the pulling object during the pulling operation, and the handle end 1 is only extended by 20 to 30 degrees, proportionally speaking, the horizontal extension is higher than the vertical extension, reaching 3 to 1 to 4 Ratio 1, therefore, the pulling power of holding the handle end to make a horizontal pull can also be effectively retained. the

Continue referring to Fig. 6 to Fig. 7, which is the second embodiment of the present invention, the curved rod section 22 can also be designed as a sleeve quick-release structure 26, and the quick-release structure 26 is in the curved rod section 22 according to Sequence is provided with an elastic piece 261, a driving piece 262, a detent piece 263 and a steel ball 264, the elastic piece 261 and the driving piece 262 appear to abut, the driving piece 262 is partly extended from the surface of the curved rod section 22 and can drive The catch piece 263 is displaced, and the steel ball 264 is moved against the top by the catch piece 263, and is partially exposed on the surface of the joint 25 or submerged in the joint 25; thereby, when the driving piece 262 is pulled, the catch piece 263 is displaced in one direction, and released indirectly The abutting space with the steel ball 264 enables the steel ball to be completely embedded in the joint 25; if the driving part 262 is released, the driving part 262 is pushed against by the elastic part 261 to drive the displacement of the locking part 263 to limit the displacement and the release space of the steel ball 264. The resisting steel ball 264 is partially exposed on the surface of the joint 25 . the

Claims (3)

1. an improved syphon torque spanner structure is characterized in that, it comprises a handle end and a work head end, wherein:

This work head end is that a straight bar section and a curved bar section are arranged, and this straight bar section is to be extended by handle end, and the relative curved bar section of this straight bar section is provided with one and extends angle, and this extension angle is 60 to 70 degree; Said work head end has a development length, this development length be with work head end be integral body, the length of gained on the axial direction of handle end, this straight bar section is 1 to 2 to 1 to 3 with the development length ratio;

Do with the curved bar section and vertically to pull operation, this handle end is to form curvatures with 20 to 30 degree to extend, and its horizontal-extending is higher than vertical extension and reaches 3 to 1 to 4 to 1 to scale, gives the user best angle.

2. improved syphon torque spanner structure according to claim 1; It is characterized in that: said handle end has a hollow holding section to reach outer bar section; And bar section in being set in outer bar intersegmental part, bar Duan Yiduan extends outer this work head end of bar section formation in this.

3. improved syphon torque spanner structure according to claim 1; It is characterized in that: said curved bar Duan Yiduan has a joint; Be provided with an elastic component, a drivening piece, a brake and a steel ball in this curved bar section in regular turn, this elastic component and drivening piece are to be replaced, and this drivening piece partly extends the curved bar section surface and can drive the brake displacement; This steel ball is replaced by the brake activity, is the part and is exposed to this joint surface or establishes into this joint.

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